Are you at least 6 weeks pregnant, or know someone who is, and are dying to find out the gender?? Gendermaker is a urine gender test that has a 98.4% success rate! However, an ultrasound is still medically the most assuring way to determine gender. As much as we believe in our product, we do offer a 100% satisfaction money back guarantee if the test is wrong! We also offer free shipping on any purchase! (Mine was right with both of my kids!)